US Secretary of State Hillary Clinton and former US president Bill Clinton applaud Chairman of the Joint Chiefs of Staff Admiral Michael Mullen after he spoke at a memorial service for veteran diplomat Richard Holbrooke January 14, 2010 at the Kennedy Center in Washington, DC. Holbrooke, 69, died December 13 following surgery for a torn aorta. Looking on at right is former US president Bill Clinton. AFP PHOTO/Mandel NGAN (Photo credit should read MANDEL NGAN/AFP/Getty Images)